







XTOOL X100 PAD3 Plus KC501 with M821 Adapter – Supports Mercedes-Benz all key lost
XTOOL X100 PAD3 Features
- New keys programming
- PIN Code reading with EEPROM
- Hexadecimal editor (Win Hex)
- Reads keys from immobilizer's memory
- New immobilizer programming
- Vehicle Identification Number programming
- Reset ECM & reset immobilizer
- New remote controller programming
- Full and strong database for the most important vehicle makes

X100 PAD3 Functions
- Key Programming
- Oil Reset / Engine oil light reset
- Odometer Adjustment
- Tire Pressure Warning Light Reset (Manual Operation)
- Timing belt light reset (Manual Operation)
- EPB Electrical Parking Brake Adaptation
- TPS Throttle Body Adaptation
- Steering Angle Calibration
- Battery Reset
- PIN Code Reading
- Hexadecimal editor (Win Hex)
- OBDII Diagnosis
- INJ Code
- Supports the latest vehicles with CAN BUS and UDS protocol
Key Programming Vehicle Coverage
Asia: Toyota, Lexus, Honda, Acura, Mazda, Nissan, Infiniti, Mitsubishi, Subaru, Suzuki, Kia, Hyundai, Daewoo, SsangYong, Proton, etc.
Europe: Audi, VW, Skoda, Seat, Porsche, Opel, Citroen, Peugeot, Jaguar, Land Rover, Lincoln, Renault, etc.
With KC100 Support
- Supports Volkswagen, Audi, Skoda 4th & 5th generation all key lost, MQB key matching
- Supports Volkswagen, Audi, Skoda 4th generation 96-bit online, 5th generation online, MQB online key matching
- Supports BMW CAS1–CAS3++, CAS4/CAS4+ key matching
- Supports Land Rover's smart key write start function after 2015
- Supports Fiat, Fischer, 500, Palio, and other models
- Supports Toyota and Lexus all key lost without disassembly; can realize 94, 98, 88, A8, A9, 39 simulation key generation (requires XTOOL KS-1)
- Some car models require a PIN code before Key Programming
KC501 Key & Chip Programmer
KC501 is a professional Key & Chip Programmer which can not only read and write keys and read key remote frequency, but also generate dealer keys. It supports reading and writing MCU/EEPROM chips and Mercedes infrared keys. Moreover, it supports PC connection for an enhanced user experience.
- Supports registers, microcontrollers, key programming, and other types of chips for read/write, emulation, and related functions
- Supports key automatic identification, partial key reading, key generation, key information reading, key verification, key unlock, and other functions
- Can be used with tablets for immobilization tasks
- EZS for Mercedes Key Programming
- Car Key Remote Control Frequency Test
- EEPROM Read & Write Chip
- MCU Read & Write
- ECU Programming Clone
XTOOL M821 Adapter
The XTOOL M821 Mercedes-Benz All Keys Lost Communication Adapter is used for completing and optimizing all key lost programming across multiple Mercedes-Benz modules. With the M821 Adapter, you can reduce calculation time by up to 65% or avoid repeatedly plugging in and out a key emulator hundreds of times.
- Supports EIS Modules:
W164 (OLD), W166, W204, W212 (NEW)
W164 (NEW), W216, W221, W211 - Supports Mercedes-Benz all keys lost scenarios
Package List
- 1 x X100 PAD3
- 1 x KC501
- 1 x M821 Adapter
- #1 saad saad
Jul 9, 2021 - The delivery was fast, all came days in 10.
- #1 Leon Stanaj
Jun 9, 2021 - Is ok!
- #1 joseph trammel
Jan 9, 2022 - Quality is good. I will test function later.
- #1 nadav maizel
May 9, 2021 - Very good product super fast
- #1 JessieB JessieB
Jun 9, 2021 - Good stuff. All as in the description
- #1 Intercollision Intercollision
Mar 9, 2022 - Quality is good. I will test function later.
- #1 Adriano Borges Medeiros
Oct 9, 2021 - Fast delivery, good package, good price. Hope everything works as it should. this XTOOL X100 PAD3 Plus KC501 With M821 Adapter Support Mercedes-Benz All Key Lost is good quality, working very well
- #1 Mireya Mendoza Elio Troyano
Jan 9, 2022 - Received it via DHL,all good.thank you.
- #1 abdulrahman aldawish
Sep 9, 2021 - The seller sent promptly. I chose according to reviews. How to check add feedback
- #1 Frank Karas
Feb 9, 2022 - Good product ...... works perfectly… no problem Recommend the purchase. Arrived fast ahead of schedule. Not the two came together, arrived separate but both came in perfect condition.
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